Improvement in blow-pipes



UNITED STATES JOHN COOK, OF NEW YORK, N. Y.

IMPROVEMENT IN BLOW-PIPES.

i Specification forming part of Letters Patent No. 127,151, dated May 28, 1872.

` resented in Figure No. 1. It is constructed in two separate vessels, annexed together, one of which is marked H C, and is to be lled up to the dotted. line with hydrocarbon fluid.' A metallic pipe, B, is inserted into and made tast to it at a point above the level of the hydrocarbon iiuid in it; and said pipe has a metallic valve in it, near the opposite end thereof; and said opposite end is inserted into a nexible rubber tube or pipe; and said valve is marked by the letter c; and said hydrocarbon vessel has a screw cover marked c', and a bent pipe, D, is tpassed through this cover and made fast therein, and is bent down so that a current or blast of air blown into the hydro carbon vessel through the pipe B wouldpass out through the pipe D and strike the flame from the top of the vessel annexed to the one just described. The annexed vessel is marked A in the drawing, and is lilled, in part, with alcohol; is provided with a screw-cover, a burner-tube marked E in the drawing, and a wick. The metallic valve in the pipe B is held in its seat by a spiral spring, so that when air is blown into the pipe this valve is forced down so as to permit the air to pass into the hydrocarbon vessel, and as it ceases to pass the force of' the spring carries the valve back to its seat, and thus prevents the inhalation of any of the odor orvapor of the hydrocarbon iiuid; and it will be obvious that the metallic pipe B and its valve may be substituted by one of flexible rubber, as when the current or blast of air through it into the hydrocarbon vessel is about to cease, by pressing the thumb and linger of the hand holding it together against such .tube the inhalation of the vapor or odor of the hydrocarbon would be equally prevented. The dotted lines including the letter H are intended to represent the base of a stand; and the lines including the latter G are intended to represent the upright part of such stand; and the upright part of the stand is intended to be passed into an aperture on the side of the base of the hydrocarbon vessel; and said vessel maybe held at any desired degree of elevation by the set-screw marked S' in the drawing.

The operation of my invention may be stated as followsthat is to say: When the respective vessels shallhave been appropriately filled with their several luids,and a flame shall have been lighted at the wick of the alcohol vessel, a current or blast of air, impelled by whatever means, into the hydrocarbon vessel through the pipe B will strike the body of the hydrocarbon iluid therein, and issue out of it through the pipe D loaded with the elements of such hydrocarbon, and strike the dame arising from the annexed vessel A, and thereby produce a iiame of many hundred degrees of heat, which renders it an instrument for profitable use in many ofthe industrial arts much exceeding in value and extent of use any blowpipe with which I am acquainted.

It is obvious that the shape, and the relations of the respective vessels used in myblowpipe, may be varied to suit the tastes of manufacturers, or the uses to which it may be ap plied, Without departing from the principle of my invention.

Having thus stated the construction and the mode of the operation of my invention, what I claim as new therein, and for which I seek Letters Patent, is-

The vessel Il C having the metallic pipe B, valve c, and bent tube D, iu combination with thevessel A, substantially as set forth.

JOHN COOK.

Witnesses THOMAS SIMMONS, O. S. X. PEcK,

PATENT OEEICE.- 

